Efficient testing device for diode

Abstract

The utility model discloses an efficient testing device for a diode, which comprises a diode body, a testing box and a plurality of testing assemblies, pins are respectively welded on a cathode and an anode of the diode body, metal rods are symmetrically and fixedly connected in the testing box front and back, and the testing assemblies are transversely and uniformly arranged on a top plate of the testing box. The beneficial effects of the utility model are that when the device is used, the two pins of the diode body are respectively inserted into the corresponding wire holders at the front side and the rear side, and then forward current and reverse current respectively pass through the two pins, so that the two pins can be connected with the corresponding wire holders at the front side and the rear side; whether the diode bodies are conducted or not is judged through the test lamp beads, so that whether the diode bodies have the correct one-way conduction performance or not is judged, the device is convenient to wire, multiple diode bodies can be tested at the same time, and compared with a traditional one-by-one test mode, the device greatly improves the convenience and efficiency of diode body test.

Description

Technical Field

[0001] The utility model relates to the technical field of diode testing devices, in particular to a high-efficiency testing device for diodes. Background Art

[0002] A diode is an electronic component made of semiconductor materials (silicon, selenium, germanium, etc.). It has unidirectional conductivity, that is, when a forward voltage is applied to the anode and cathode of the diode, the diode is turned on, and when a reverse voltage is applied to the anode and cathode, the diode is cut off. Therefore, the conduction and cutoff of the diode are equivalent to the connection and disconnection of a switch.

[0003] After the diode is produced, it needs to be tested whether it has the correct unidirectional conduction performance. In the prior art, it is generally necessary to test each diode one by one, that is, the cathode and anode of the diode are connected to the forward voltage for testing, and then connected to the negative voltage for testing. Each diode needs to be tested twice, resulting in low test efficiency. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a high-efficiency testing device for diodes, and the utility model is implemented through the following technical solutions.

[0005] A high-efficiency test device for a diode comprises a diode body, a cathode and an anode of the diode body are respectively welded with pins, and also comprises a test box and a test assembly; a metal rod is fixedly connected between the left and right side plates of the test box, the metal rods are symmetrically arranged front and back, the metal rods on the front and back sides are powered by an external power supply, the test assembly is evenly arranged in multiple groups laterally on the top plate of the test box, each group of test assemblies comprises a wiring socket and a test lamp bead that are symmetrical front and back, the wiring socket and the test lamp bead are both fixedly connected to the top plate of the test box, the wiring socket on the front side is electrically connected to one of the wiring terminals of the test lamp bead through a wire, the other wiring terminal of the test lamp bead is electrically connected to the metal rod on the front side through a wire, and the wiring socket on the rear side is electrically connected to the metal rod on the rear side through a wire.

[0006] Furthermore, a jack penetrating from front to back is provided in the wiring seat, and the cross-sectional dimensions of the jack are consistent with the cross-sectional dimensions of the pin.

[0007] Furthermore, a power connection mechanism is provided on the front side of the test box, and the external power supply includes a first DC power supply and a second DC power supply which are symmetrically fixed to the front side of the test box. The positive pole of the first DC power supply and the negative pole of the second DC power supply are electrically connected to the metal rod on the rear side through wires, and the negative pole of the first DC power supply and the positive pole of the second DC power supply are electrically connected to the metal rod on the front side through the power connection mechanism.

[0008] Furthermore, the power connection mechanism includes a power connection torch, a screw and a metal power connection plate; the power connection torch is fixedly connected to the front side of the test box and is located between the first DC power supply and the second DC power supply, the left side of the power connection torch is symmetrically fixed with a first power connection block, and the right side of the power connection torch is symmetrically fixed with a second power connection block, the negative pole of the first DC power supply is electrically connected to the first power connection block on the front side, the first power connection block on the rear side is electrically connected to the metal rod on the front side, the positive pole of the second DC power supply is electrically connected to the second power connection block on the front side, and the second power connection block on the rear side is electrically connected to the metal rod on the front side, the screw is rotatably connected between the left and right side plates of the power connection torch, the right end of the screw extends out of the power connection torch and is fixedly connected to a dial, the metal power connection plate is slidably connected in the power connection torch, the center of the metal power connection plate is fixedly connected to a threaded sleeve, and the screw is engaged in the threaded sleeve.

[0009] Furthermore, four guide rods are arranged in a rectangular shape in the power connection flashlight, and the four corners of the metal power connection plate are slidably connected to the guide rods.

[0010] Furthermore, the power connection torch, guide rod and screw rod are all made of insulating materials.

[0011] The beneficial effect of the utility model is that during the use of the device, the two pins of the diode body are respectively inserted into the corresponding terminal blocks on the front and rear sides, and then the forward current and the reverse current are respectively passed through the test lamp bead to determine whether the diode body is turned on, thereby determining whether the diode body has the correct unidirectional conduction performance. The device is easy to wire and can test multiple diode bodies at the same time. Compared with the traditional one-by-one testing, the device greatly improves the convenience and efficiency of diode body testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 : An axonometric diagram of a high-efficiency diode testing device according to the utility model;

[0014] Figure 2 : Schematic diagram of the power connection of each circuit element in the utility model;

[0015] Figure 3 : A schematic diagram of the internal structure of the power torch of the utility model;

[0016] Figure 4 : A schematic diagram of the circuit connection of the test assembly of the utility model;

[0017] Figure 5 : A schematic diagram of the circuit connection of each circuit element in the utility model;

[0018] Figure 6 : Figure 5 A partial enlarged view of point A is shown.

[0019] The reference numerals are as follows:

[0020] a-diode body, a1-pin, 1-test box, 11-metal rod, 21-terminal holder, 22-test lamp bead, 23-jack, 3-power connection mechanism, 31-power connection flashlight, 32-screw, 33-metal power connection plate, 34-first power connection block, 35-second power connection block, 36-dial, 37-threaded sleeve, 38-guide rod, 41-first DC power supply, 42-second DC power supply. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1-6 As shown, a high-efficiency test device for a diode includes a diode body a, the cathode and anode of the diode body a are respectively welded with pins a1, and also includes a test box 1 and a test component; a metal rod 11 is fixedly connected between the left and right side panels of the test box 1, the metal rod 11 is symmetrically arranged front and back, the metal rods 11 on the front and back sides are powered by an external power supply, and the test component is evenly arranged in a plurality of groups on the top plate of the test box 1 in the horizontal direction, each group of test components includes a front and back symmetrical wiring seat 21 and a test lamp bead 22, the wiring seat 21 and the test lamp bead 22 are both fixedly connected to the top plate of the test box 1, the front wiring seat 21 is electrically connected to one of the wiring terminals of the test lamp bead 22 through a wire, the other wiring terminal of the test lamp bead 22 is electrically connected to the front metal rod 11 through a wire, and the rear wiring seat 21 is electrically connected to the rear metal rod 11 through a wire.

[0023] Preferably, a plug hole 23 penetrating from front to back is provided in the wiring seat 21, and the cross-sectional dimension of the plug hole 23 is consistent with the cross-sectional dimension of the pin a1.

[0024] Preferably, a power connection mechanism 3 is provided on the front side of the test box 1, and the external power supply includes a first DC power supply 41 and a second DC power supply 42 which are symmetrically fixed to the front side of the test box 1, and the positive pole of the first DC power supply 41 and the negative pole of the second DC power supply 42 are electrically connected to the metal rod 11 on the rear side through wires, and the negative pole of the first DC power supply 41 and the positive pole of the second DC power supply 42 are electrically connected to the metal rod 11 on the front side through the power connection mechanism 3.

[0025] Preferably, the power connection mechanism 3 includes a power connection torch 31, a screw 32 and a metal power connection plate 33; the power connection torch 31 is fixedly connected to the front side of the test box 1 and is located between the first DC power supply 41 and the second DC power supply 42, the left side of the power connection torch 31 is symmetrically fixed with a first power connection block 34, the right side of the power connection torch 31 is symmetrically fixed with a second power connection block 35, the negative pole of the first DC power supply 41 is electrically connected to the first power connection block 34 on the front side, and the first power connection block 34 on the rear side is electrically connected to the metal connection plate 33 on the front side. The rod 11 is electrically connected, the positive pole of the second DC power supply 42 is electrically connected to the second power connection block 35 on the front side, the second power connection block 35 on the rear side is electrically connected to the metal rod 11 on the front side, the screw 32 is rotatably connected between the left and right side plates of the power connection flashlight 31, the right end of the screw 32 extends out of the power connection flashlight 31 and is fixedly connected to a dial 36, the metal power connection disk 33 is slidably connected in the power connection flashlight 31, and a threaded sleeve 37 is fixedly connected to the center of the metal power connection disk 33, and the screw 32 is engaged in the threaded sleeve 37.

[0026] Preferably, four guide rods 38 are arranged in a rectangular shape in the power connection flashlight 31 , and the four corners of the metal power connection plate 33 are slidably connected to the guide rods 38 .

[0027] Preferably, the torch 31, the guide rod 38 and the screw rod 32 are all made of insulating materials.

[0028] A specific implementation of the utility model is:

[0029] First, install the diode body a, insert the anode pin a1 of the diode body into the socket 23 in the rear terminal holder 21, and insert the cathode pin a1 of the diode body into the socket 23 in the front terminal holder 21. Install the diode bodies a one by one so that multiple diode bodies a can be tested at the same time.

[0030] like Figure 2 and 5 As shown, after the diode body a is installed, the anode of each diode body is electrically connected to the metal rod 11 on the rear side, and the cathode of the diode body a is electrically connected to the metal rod 11 on the front side through the test lamp bead 22.

[0031] like Figure 3 and 6As shown, the screw rod 32 can be driven to rotate by the dial 36. Since the metal contact plate 33 is engaged with the screw rod 32 through the threaded sleeve 37 and the metal contact plate 33 is limited by the guide rod 38, the metal contact plate 33 can be driven to move left and right when the screw rod 32 rotates.

[0032] When the metal power connection plate 33 moves to the left and contacts the first power connection block 34, the circuit between the first DC power supply 41 and the two metal rods 11 is turned on, and the metal rod 11 on the rear side is connected to the positive pole, and the metal rod 11 on the front side is connected to the negative pole. At this time, the diode body a is connected to the forward current. If each test lamp bead 22 lights up, it indicates that each diode body a has forward conduction performance.

[0033] When the metal power connection plate 33 moves to the right and contacts the second power connection block 35, the circuit between the second DC power supply 42 and the two metal rods 11 is turned on, and the metal rod 11 on the rear side is connected to the negative pole, and the metal rod 11 on the front side is connected to the positive pole. At this time, the diode body a is connected to the reverse current. If the test lamp beads 22 do not light up, it indicates that the diode bodies a have reverse cutoff performance.

[0034] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An efficient test device for a diode, comprising a diode body, wherein the cathode and anode of the diode body are respectively welded with pins, characterized in that: It also includes a test box and a test component; a metal rod is fixed between the left and right side panels of the test box, the metal rod is symmetrically arranged front and back, the metal rods on the front and back sides are powered by an external power supply, and the test components are evenly arranged in multiple groups laterally on the top plate of the test box, each group of test components includes a wiring socket and a test lamp bead that are symmetrical front and back, the wiring socket and the test lamp bead are both fixed to the top plate of the test box, the front wiring socket is electrically connected to one of the wiring terminals of the test lamp bead through a wire, the other wiring terminal of the test lamp bead is electrically connected to the front metal rod through a wire, and the rear wiring socket is electrically connected to the rear metal rod through a wire.

2. The high-efficiency diode testing device according to claim 1, characterized in that: The wiring seat is provided with a plug hole which penetrates front and back, and the cross-sectional dimension of the plug hole is consistent with the cross-sectional dimension of the pin.

3. The high-efficiency diode testing device according to claim 1, characterized in that: A power connection mechanism is provided on the front side of the test box, and the external power supply includes a first DC power supply and a second DC power supply which are symmetrically fixed to the front side of the test box. The positive pole of the first DC power supply and the negative pole of the second DC power supply are electrically connected to the metal rod on the rear side through wires, and the negative pole of the first DC power supply and the positive pole of the second DC power supply are electrically connected to the metal rod on the front side through the power connection mechanism.

4. The high-efficiency diode testing device according to claim 3, characterized in that: The power connection mechanism includes a power connection torch, a screw and a metal power connection plate; the power connection torch is fixedly connected to the front side of the test box and is located between the first DC power supply and the second DC power supply, the left side of the power connection torch is symmetrically fixed with a first power connection block, and the right side of the power connection torch is symmetrically fixed with a second power connection block, the negative pole of the first DC power supply is electrically connected to the first power connection block on the front side, the first power connection block on the rear side is electrically connected to the metal rod on the front side, the positive pole of the second DC power supply is electrically connected to the second power connection block on the front side, and the second power connection block on the rear side is electrically connected to the metal rod on the front side, the screw is rotatably connected between the left and right side plates of the power connection torch, the right end of the screw extends out of the power connection torch and is fixedly connected to a dial, the metal power connection plate is slidably connected in the power connection torch, the center of the metal power connection plate is fixedly connected to a threaded sleeve, and the screw is engaged in the threaded sleeve.

5. The high-efficiency diode testing device according to claim 4, characterized in that: Four guide rods are arranged in a rectangular shape in the power connection flashlight, and the four corners of the metal power connection plate are slidably connected to the guide rods.

6. The high-efficiency diode testing device according to claim 5, characterized in that: The power connection torch, the guide rod and the screw rod are all made of insulating materials.

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